Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual superfície teve Yew-Ming Si como parceiro?
 ###Tabelas: CREATE TABLE tyre_summary (tyre_summary_id AUTO_INCREMENT PRIMARY KEY, Compound name VARCHAR, Colour VARCHAR, Tread VARCHAR, Driving conditions VARCHAR, Dry Type* VARCHAR, Grip VARCHAR, Durability VARCHAR) CREATE TABLE doubles_runner-up (doubles_runner-up_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Surface VARCHAR, Partner VARCHAR, Opponents in the final VARCHAR, Score VARCHAR) CREATE TABLE girls'_basketball_players_and_coaches_of_the_year (girls'_basketball_players_and_coaches_of_the_year_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Player VARCHAR, School VARCHAR, Hometown VARCHAR, College VARCHAR) CREATE TABLE world_war_ii (world_war_ii_id AUTO_INCREMENT PRIMARY KEY, Estimate VARCHAR, Name VARCHAR, Nat. VARCHAR, Ship type VARCHAR, Where sunk VARCHAR, Date VARCHAR) CREATE TABLE series_summary (series_summary_id AUTO_INCREMENT PRIMARY KEY, Series INT, Year VARCHAR, Winner VARCHAR, Runner-up VARCHAR, Third place VARCHAR, Fourth place VARCHAR, Fifth place VARCHAR, Sixth place VARCHAR, Host VARCHAR)  
SELECT Surface FROM doubles_runner-up WHERE Partner = yew-ming si